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+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.4</a> &gt; <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_proxy_http2</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_http2.html" title="English">&nbsp;en&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>HTTP/2 support module for
+<code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></td></tr>
+<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>proxy_http2_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_proxy_http2.c</td></tr></table>
+<h3>Summary</h3>
+
+ <p>This module <em>requires</em> the service of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>. It provides the features used for
+ proxying HTTP/2 requests. <code class="module"><a href="../mod/mod_proxy_http2.html">mod_proxy_http2</a></code>
+ supports HTTP/2 only. It does <em>not</em>
+ provide any downgrades to HTTP/1.1.</p>
+
+ <p>Thus, in order to get the ability of handling HTTP/2 proxy requests,
+ <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code> and <code class="module"><a href="../mod/mod_proxy_http2.html">mod_proxy_http2</a></code>
+ have to be present in the server.</p>
+
+ <p><code class="module"><a href="../mod/mod_proxy_http2.html">mod_proxy_http2</a></code> works with incoming requests
+ over HTTP/1.1 and HTTP/2 requests. If <code class="module"><a href="../mod/mod_http2.html">mod_http2</a></code>
+ handles the frontend connection, requests against the same HTTP/2
+ backend are sent over a single connection, whenever possible.</p>
+
+ <p>This module relies on <a href="http://nghttp2.org/">libnghttp2</a>
+ to provide the core http/2 engine.</p>
+
+ <div class="warning"><h3>Warning</h3>
+ <p>This module is experimental. Its behaviors, directives, and
+ defaults are subject to more change from release to
+ release relative to other standard modules. Users are encouraged to
+ consult the "CHANGES" file for potential updates.</p>
+ </div>
+
+ <div class="warning"><h3>Warning</h3>
+ <p>Do not enable proxying until you have <a href="mod_proxy.html#access">secured your server</a>. Open proxy
+ servers are dangerous both to your network and to the Internet at
+ large.</p>
+ </div>
+</div>
+<div id="quickview"><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#notes">Request notes</a></li>
+</ul><h3 class="directives">Directives</h3>
+<p>This module provides no
+ directives.</p>
+<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_proxy_http2">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_proxy_http2">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><code class="module"><a href="../mod/mod_http2.html">mod_http2</a></code></li>
+<li><code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></li>
+<li><code class="module"><a href="../mod/mod_proxy_connect.html">mod_proxy_connect</a></code></li>
+<li><a href="#comments_section">Comments</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="notes" id="notes">Request notes</a></h2>
+ <p><code class="module"><a href="../mod/mod_proxy_http.html">mod_proxy_http</a></code> creates the following request notes for
+ logging using the <code>%{VARNAME}n</code> format in
+ <code class="directive"><a href="../mod/mod_log_config.html#logformat">LogFormat</a></code> or
+ <code class="directive"><a href="../mod/core.html#errorlogformat">ErrorLogFormat</a></code>:
+ </p>
+ <dl>
+ <dt>proxy-source-port</dt>
+ <dd>The local port used for the connection to the backend server.</dd>
+ <dt>proxy-status</dt>
+ <dd>The HTTP/2 status received from the backend server.</dd>
+ </dl>
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_http2.html" title="English">&nbsp;en&nbsp;</a></p>
+</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
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